A neutral arene-tethered ruthenium complex was found to be a catalyst precursor for enyne cycloisomerizations and hydroxycyclizations. The observed products were the result of a skeletal rearrangement process, and include an unusual cyclization to form a six-membered ring. Labeling studies on the six-membered ring product are in accord with an electrophilic activation mechanism that proceeds via cationic
                                    发现中性的
芳烃系的
钌络合物是烯炔环异构化和羟基环化的催化剂前体。观察到的产物是骨骼重排过程的结果,并且包括不寻常的环化以形成六元环。对六元环产物的标记研究符合通过阳离子环丙基卡宾中间体进行的亲电活化机理。